Total number of Cr–O bonds in Chromate ion and dichromate ion is.

Hybridisation of chromium ions in chromate and dichromate ions is respectively

Hybridisation of chromium ions in chromate and dichromate ions is respectively

Draw the structure of : (i) chromate ion and (ii) dichromate ion.

Bond order of N-O bonds in nitrate ion is

The number of a bonds in ClO_(4)^(-) ion is

The sum of the total number of sigma bonds between chromium and oxygen atoms in chromate and dichromate ions is

Potassium dichromate is used as'lab reagent and dichromate ion can be used as a primary standard in volumetric analysis. (1)/(2)Cr_(2)O_(7)^(2-)+7H^(+)+3e^(-)iffCr^(3+)+3(1)/(2)H_(2)O,E^(@)=1.33V When H_(2)O_(2) is added to an acidified' solution of dichromate, a complicated reaction occurs. The formation of product depends on the pH value and concentration of dichromate ions. A deep-blue violet peroxo compound X is formed which decomposes rapidly in aqueous solution. This compound can be extracted in ether, where it reacts with pyridine forming the adduct PyCro(O_(2))_(2) In alkaline solution, K_(2)Cr_(2)O_(7) with 30% H_(2)O_(2) a red-brown compound Y (K_(3) CrO_(8) is formed. In ammonia solution the dark red-brown compound. Z [(NH_(3)),CrO_(4)] is formed. In alkaline solution, dichromate ion changes to chromate ion which is also used as reagent in quantitative analysis of cations QThe number of moles of Cr_(2)O_(7)^(2-) required in acidic medium to oxidize 1 mol of ferric oxalate is

Potassium dichromate is used as'lab reagent and dichromate ion can be used as a primary standard in volumetric analysis. (1)/(2)Cr_(2)O_(7)^(2-)+7H^(+)+3e^(-)iffCr^(3+)+3(1)/(2)H_(2)O,E^(@)=1.33V When H_(2)O_(2) is added to an acidified' solution of dichromate, a complicated reaction occurs. The formation of product depends on the pH value and concentration of dichromate ions. A deep-blue violet peroxo compound X is formed which decomposes rapidly in aqueous solution. This compound can be extracted in ether, where it reacts with pyridine forming the adduct PyCro(O_(2))_(2) In alkaline solution, K_(2)Cr_(2)O_(7) with 30% H_(2)O_(2) a red-brown compound Y (K_(3) CrO_(8) is formed. In ammonia solution the dark red-brown compound. Z [(NH_(3)),CrO_(4)] is formed. In alkaline solution, dichromate ion changes to chromate ion which is also used as reagent in quantitative analysis of cations QWhich of the following cations can be identified by using Na_(2) CrO_(4) solution? Ba^(2+) Pb^(2+) Ag^(+) (IV) Sr^(2+)

How many Cr-O bonds are equivalent in chromate dianion ?

EDTA^(4-) i9s ethylenediamine tetraacetate ion The total number of N-CO-O bond angles in [Co(EDTA)]^(-1) complex ion is .